Avionics News February 2013 - 32

WIRES, CABLES & CONNECTORS
Continued from page 31

Photo by Scott M. Spangler

Many shops recount airplanes with haphazard wiring, and a few fill boxes with evidence.
32

avionics news

•

february

2013

is a matter of selection. Part 25
“burn requirements” determines
what can go where. In lowtemperature environments, polyethylene insulation is the most
cost effective. High-temperature
environments call for “some form
of Teflon, PTFE, FEP or ETFE.”
When aviation-grade insulation
can no longer resist high temps, it
must not emit toxic fumes.
Internal temperatures determine
the conductor’s copper alloy. “A
power cable with a nickel-plated
conductor can run at a higher temp
more comfortably than a standard copper or tin-plated copper
would.”
“This is just one example of how
metallurgy is important to every
AWG (American wire gauge) from
0000 gauge and smaller,” Bachleda
said. Alloying metals to achieve the
needed strength and conductivity
became more challenging with international restrictions of hazardous
substances, which includes recycling of electronic waste, that have
taken effect after the millennium.
RoHS, or restriction of hazardous substances, is often referred
to as the lead-free directive, but it
restricts six substances hazardous
to human health: lead, mercury,
cadmium, hexavalent chromium,
polybrominated biphenyls and
polybrominated diphenyl ether.
The last two are flame retardants
used in plastics, and hex-chrome
is used in welding, grinding and
brazing of stainless steel. Lead



Table of Contents for the Digital Edition of Avionics News February 2013

Point of Communication
AEA Now
The View From Washington
International News and Regulatory Updates
Portable Powerhouses, VHF to GPS
Member Profile
Wires, Cables, & Connectors
Avionics News Through the Years
The Place To Be
A Conversation With...
Member Profile
AEAviators
Develop Your Best Salesperson
Business Basics
Trailblazer
What's New
Marketplace Classifieds
Before & After
Avionics News February 2013 - Intro
Avionics News February 2013 - Cover1
Avionics News February 2013 - Cover2
Avionics News February 2013 - 1
Avionics News February 2013 - 2
Avionics News February 2013 - 3
Avionics News February 2013 - Point of Communication
Avionics News February 2013 - 5
Avionics News February 2013 - AEA Now
Avionics News February 2013 - 7
Avionics News February 2013 - 8
Avionics News February 2013 - 9
Avionics News February 2013 - 10
Avionics News February 2013 - 11
Avionics News February 2013 - 12
Avionics News February 2013 - 13
Avionics News February 2013 - The View From Washington
Avionics News February 2013 - 15
Avionics News February 2013 - International News and Regulatory Updates
Avionics News February 2013 - 17
Avionics News February 2013 - 18
Avionics News February 2013 - 19
Avionics News February 2013 - Portable Powerhouses, VHF to GPS
Avionics News February 2013 - 21
Avionics News February 2013 - 22
Avionics News February 2013 - 23
Avionics News February 2013 - Member Profile
Avionics News February 2013 - 25
Avionics News February 2013 - 26
Avionics News February 2013 - 27
Avionics News February 2013 - Wires, Cables, & Connectors
Avionics News February 2013 - 29
Avionics News February 2013 - 30
Avionics News February 2013 - 31
Avionics News February 2013 - 32
Avionics News February 2013 - 33
Avionics News February 2013 - Avionics News Through the Years
Avionics News February 2013 - 35
Avionics News February 2013 - The Place To Be
Avionics News February 2013 - 37
Avionics News February 2013 - 38
Avionics News February 2013 - 39
Avionics News February 2013 - 40
Avionics News February 2013 - 41
Avionics News February 2013 - A Conversation With...
Avionics News February 2013 - 43
Avionics News February 2013 - Member Profile
Avionics News February 2013 - 45
Avionics News February 2013 - 46
Avionics News February 2013 - 47
Avionics News February 2013 - AEAviators
Avionics News February 2013 - 49
Avionics News February 2013 - Develop Your Best Salesperson
Avionics News February 2013 - 51
Avionics News February 2013 - 52
Avionics News February 2013 - 53
Avionics News February 2013 - Business Basics
Avionics News February 2013 - 55
Avionics News February 2013 - 56
Avionics News February 2013 - 57
Avionics News February 2013 - Trailblazer
Avionics News February 2013 - 59
Avionics News February 2013 - 60
Avionics News February 2013 - 61
Avionics News February 2013 - 62
Avionics News February 2013 - 63
Avionics News February 2013 - 64
Avionics News February 2013 - 65
Avionics News February 2013 - What's New
Avionics News February 2013 - 67
Avionics News February 2013 - 68
Avionics News February 2013 - 69
Avionics News February 2013 - Marketplace Classifieds
Avionics News February 2013 - 71
Avionics News February 2013 - Before & After
Avionics News February 2013 - Cover3
Avionics News February 2013 - Cover4
http://www.brightcopy.net/allen/avne/56-10
http://www.brightcopy.net/allen/avne/56-9
http://www.brightcopy.net/allen/avne/56-8
http://www.brightcopy.net/allen/avne/56-7
http://www.brightcopy.net/allen/avne/56-6
http://www.brightcopy.net/allen/avne/56-5
http://www.brightcopy.net/allen/avne/56-4
http://www.brightcopy.net/allen/avne/56-3
http://www.brightcopy.net/allen/avne/56-2
http://www.brightcopy.net/allen/avne/56-1
http://www.brightcopy.net/allen/avne/55-12
http://www.brightcopy.net/allen/avne/55-11
http://www.brightcopy.net/allen/avne/55-10
http://www.brightcopy.net/allen/avne/55-9
http://www.brightcopy.net/allen/avne/55-8
http://www.brightcopy.net/allen/avne/55-7
http://www.brightcopy.net/allen/avne/55-6
http://www.brightcopy.net/allen/avne/55-5
http://www.brightcopy.net/allen/avne/55-4
http://www.brightcopy.net/allen/avne/55-3
http://www.brightcopy.net/allen/avne/55-02
http://www.brightcopy.net/allen/avne/55-01
http://www.brightcopy.net/allen/avne/54-12
http://www.brightcopy.net/allen/avne/54-11
http://www.brightcopy.net/allen/avne/54-10
http://www.brightcopy.net/allen/avne/54-9
http://www.brightcopy.net/allen/avne/54-8
http://www.brightcopy.net/allen/avne/54-7
http://www.brightcopy.net/allen/avne/54-6
http://www.brightcopy.net/allen/avne/54-5
http://www.brightcopy.net/allen/avne/54-4
http://www.brightcopy.net/allen/avne/54-3
http://www.brightcopy.net/allen/avne/54-2
http://www.brightcopy.net/allen/avne/54-1
http://www.brightcopy.net/allen/avne/53-12
http://www.brightcopy.net/allen/avne/53-11
http://www.brightcopy.net/allen/avne/53-10
http://www.brightcopy.net/allen/avne/53-9
http://www.brightcopy.net/allen/avne/53-8
http://www.brightcopy.net/allen/avne/53-7
http://www.brightcopy.net/allen/avne/53-6
http://www.brightcopy.net/allen/avne/53-5
http://www.brightcopy.net/allen/avne/53-4
http://www.brightcopy.net/allen/avne/53-3
http://www.brightcopy.net/allen/avne/53-2
http://www.brightcopy.net/allen/avne/53-1
http://www.brightcopy.net/allen/avne/52-12
http://www.brightcopy.net/allen/avne/52-11
http://www.brightcopy.net/allen/avne/52-10
http://www.brightcopy.net/allen/avne/52-9
http://www.brightcopy.net/allen/avne/52-8
http://www.nxtbook.com/allen/avne/52-7
http://www.nxtbook.com/allen/avne/52-6
http://www.nxtbook.com/allen/avne/52-5
http://www.nxtbook.com/allen/avne/52-4
http://www.nxtbook.com/allen/avne/52-3
http://www.nxtbook.com/allen/avne/52-2
http://www.nxtbook.com/allen/avne/52-1
http://www.nxtbook.com/allen/avne/51-12
http://www.nxtbook.com/allen/avne/51-11
http://www.nxtbook.com/allen/avne/51-10
http://www.nxtbook.com/allen/avne/51-9
http://www.nxtbook.com/allen/avne/51-8
http://www.nxtbook.com/allen/avne/51-7
http://www.nxtbook.com/allen/avne/51-6
http://www.nxtbook.com/allen/avne/51-5
http://www.nxtbook.com/allen/avne/51-4
http://www.nxtbook.com/allen/avne/51-3
http://www.nxtbook.com/allen/avne/51-2
http://www.nxtbook.com/allen/avne/51-1
http://www.nxtbook.com/allen/avne/50-12
http://www.nxtbook.com/allen/avne/50-11
http://www.nxtbook.com/allen/avne/50-10
http://www.nxtbook.com/allen/avne/50-9
http://www.nxtbook.com/allen/avne/50-8
http://www.nxtbook.com/allen/avne/50-7
http://www.nxtbook.com/allen/avne/50-6
http://www.nxtbook.com/allen/avne/50-5
http://www.nxtbook.com/allen/avne/50-4
http://www.nxtbook.com/allen/avne/50-3
http://www.nxtbook.com/allen/avne/50-2
http://www.nxtbook.com/allen/avne/50-1
http://www.nxtbook.com/allen/avne/49-12
http://www.nxtbook.com/allen/avne/49-11
http://www.nxtbook.com/allen/avne/49-10
http://www.nxtbook.com/allen/avne/49-9
http://www.nxtbook.com/allen/avne/49-8
http://www.nxtbook.com/allen/avne/49-7
http://www.nxtbook.com/allen/avne/49-6
http://www.nxtbook.com/allen/avne/49-5
http://www.nxtbook.com/allen/avne/49-4
http://www.nxtbook.com/allen/avne/49-3
http://www.nxtbook.com/allen/avne/49-2
http://www.nxtbook.com/allen/avne/49-1
http://www.nxtbook.com/allen/avne/48-12
http://www.nxtbook.com/allen/avne/48-11
http://www.nxtbookMEDIA.com